Barrel stave



March 18,1924; 1,487,186

' H. J. SMITH BARREL STAVE iFild Dec. 19. 1921 .HIS A TTORNE Y PatentedMar. 18, 1924.

, HERBERT J. SMITH, or Kriannv, new ERSEY, assrenoa ro Ammanrrnancoorsneer; COMPANYINQ, or DOVER. DELAWARE, A CORPORATION OFDELAWARE.

BARREL STAVE.

' Application .filed December 19, 1921. Serial No. 523,306.

To all whom z't may concern:

' Beit known that I, I'IERBERT J. SMITH, a subject of the Dominion ofCanada, and resident of" Kearny, in thecounty of Hudson and State of NewJersey, have invented certain new and useful Improvements in BarrelStaves, ofnwhieh the following is a specification.

outside The invention relates to barrel staves formed of paperboard andthe method of making the same, and has for its object to provide a stavecomprising avbody of paperboard, preferably including a series of pliesof paperboard united by a suitable binder or adhesive, which latter willtemporarily moisten the blank sufficientlyto enable the same to bepressed into its ultimate form, which includes longitudinal andtransverse curvatures and the narrowing of the staves from the middletoward the ends. mation of the stave is eflected by pressing thesoftened paperboard blank to impart the desired curvature thereto, andat the same time forming in the body of the blank an intermediatelongitudinal groove which increases in depth and width from the centertoward the ends, and transverse grooves near the ends which increase indepth and width from the intersection thereof with the longitudinalgrooves toward the lateral edges.

The invention is illustrated in the 'accom panying drawing, in which:

Figure 1 is a perspective view of a suitable paperboard blank forforming a stave;

Fig. 2 is a plan view of a complete stave looking toward the inside;

Fig. 3 is an end elevation of the same; Fig. a is a plan View of thestave from the Fig. 5 is a fragmentary sectional perspective viewshowing the mode of 'applyinga hoop and head to the barrel, and

Fig. 6 isa perspective view of the complete barrel.

Referring to the drawings, 1 indicates the paperboard blank'for forminga single stave, the same preferablycomprising a series of plies ofrectangular sheets of paperboard, united by a suitable adhesive, such,for example, as'silicate of soda, which will havev the efiect offirst'softening the blank to render the same more or less plastic andpliable, and subsequently to'set or harden and retain the blank in theultimate form imparted thereto by the succeeding operations.

Such for- WVl iile the blank stillplastic or. soft, due

tothe action of the adhesive, it is placed in a. suitable press, whichreducestheblank to 7 its final stave like; form,. namely, with theproper bilge produced by imparting a longitudinal curvature from end toend and a transverse curvature from side to side. During the pressingoperation there is formed in the blank a median longitudinal groove 2,which increases in depth and width from the center of the blank towardeach end, said groove comprising a relatively narrow shallow middleportion and outwardly'flaring deepening end sections 3 which have theeffect of producing thenecessary taper of the stave from the middlesection toward the ends. In addition to these grooves 2, there is alsoformed during the pressing operation [transverse grooves in therespective ends of the staves,wh1'ch grooves increase in depth d i andwidth from the intersections thereof withthe longitudinal grooves towardthe lateral edges of the blank and provide inwardly projecting ledges 5to support the barrel heads 6 and channel-like elements? to receive thehoops 8. These longitudinal and transverse grooves also constitutematerial reenforcing or strengthening elementsfor each stave so that thestaves maybe handledand shipped without danger of deforming the same. I

In this particular. form and structural arrangement of the staves asillustrated, eight units are sufficient to form a barrel, and

when assembled in the usual manner and the heads 6 and hoops 8 appliedinaccordance p with the standard practice, a very strong and light barrel,as illustrated in Fig. 6, results. When the staves are thus made up ntoai barrel, the inwardly projecting portions of 'thestaves formed by thedeep'enedend sections serum grooves 2 overhang the heads 6 and servetolock them in place onthe ledges 5. V

Nhatl claim is:

1. A barrelv stave comprising a blank of paperboard having a continuousintermediate longitudinal groove therein increasing in depth and widthfrom the; center toward each end of the blank. r

2. A barrel stave comprising a blanket paperboard having an intermediatelongitudinal groove therein increasing in depth and width from thecenter toward each end of the blank,oand transverse grooves near 3. Abarrel stave comprising a blank formed of several-plies-of paperboardunited by an adheslve, said blank having an inter- V mediatelongitudinal groove therein increasing in depth and Width from thecenter to- Ward each end of thebla nk,

4. A barrel stave comprising a blank formed of'several plies ofpaperboard united by an adhesive, said blank having anintermediatelongitudinal groove therein increas ing in depth and Widthfrom the'cen'ter to- Ward each end of the'blank, and transverse 15grooves near each cnd increasingin depth and \vldth from'the'interseotion thereof with the longitudinal-groove to the lateraledges.

5. A barrel stave comprising a blank of paper board having anintermediate longitudinal groove, and transverse grooves near each endincreasingin depth and Width from th'einters'ection" thereof with thelongitudinal groove to the lateral edges.

Signed at New York, in the county of New York, and State of New Yorkthis 8th day of December, A. D. 1921.

1 HERBERT J'. SMETH.

